tests: unit: util: add test_arithmetic_shift_right (14fb0f39) · Commits · Wenxi XU / zephyr

tests/unit/util/main.c

+21 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,27 @@ ZTEST(util, test_sign_extend) {
		zassert_equal(sign_extend(u32, 28), 0xfffffff);
		}

		ZTEST(util, test_arithmetic_shift_right)
		{
		/* Test positive number */
		zassert_equal(arithmetic_shift_right(0x8, 2), 0x2);
		zassert_equal(arithmetic_shift_right(0x10, 3), 0x2);
		zassert_equal(arithmetic_shift_right(0x20, 4), 0x2);

		/* Test negative number */
		zassert_equal(arithmetic_shift_right(-0x8, 2), -0x2);
		zassert_equal(arithmetic_shift_right(-0x10, 3), -0x2);
		zassert_equal(arithmetic_shift_right(-0x20, 4), -0x2);

		/* Test zero shift */
		zassert_equal(arithmetic_shift_right(0x2A, 0), 0x2A);
		zassert_equal(arithmetic_shift_right(-0x2A, 0), -0x2A);

		/* Test large shifts */
		zassert_equal(arithmetic_shift_right(0x7FFFFFFFFFFFFFFF, 63), 0x0);
		zassert_equal(arithmetic_shift_right(0x8000000000000000, 63), -0x1);
		}

		ZTEST(util, test_sign_extend_64) {
		uint8_t u8;
		uint16_t u16;